Aleksandra Marszalek
Technical Lead · Senior Backend Engineer · Lifelong Learner
Hey, I'm Ola!
I'm a Technical Lead and Senior Backend Engineer who loves building things that actually matter - solutions that are both well-crafted and genuinely useful to the people using them. I get a lot of energy from working through hard problems and collaborating closely with the business. I genuinely care about diversity, equity, and building workplaces where everyone can do their best work.
My core expertise is in Java, though I'm increasingly drawn to AI tooling and its potential to transform how we build software. I love picking up new things - this portfolio is a good example of that, built with TypeScript, React, and Next.js, with a healthy assist from Claude Code.
Outside of work, I'm an accomplished ultimate frisbee player who has represented both Great Britain and Poland on the international stage. I'm an avid reader, a film enthusiast, and a curious traveler. I also mentor people breaking into the tech industry for the first time - it's one of the most rewarding things I do.
Connect
Featured Projects
All projectsFull-stack TODO application with a Spring Boot REST API and a React frontend. The backend features JWT authentication, role-based access control, and full CRUD operations — tested with TestContainers and documented via Swagger/OpenAPI. The frontend is built with React and Tailwind CSS.
Latest Posts
All postsHow I Built This (And Why I Didn't Overthink It)
Needed a portfolio, needed it fast. Here's the honest story of how I built it - and why keeping it simple was the right call.
Hello World — Welcome to My Blog
An introduction to who I am, what I build, and what you can expect to read about on this blog.